These mags are great! Sure, they are a little pricey, but they work fantastic; they fit really well in my A&K Masada. They also look great with it in the dark earth color. The magazines are fairly slim, and should fit well in most M4/M16 style rifles. As an added bonus, the mags come with dust covers, which are really nice. Finally, the M-Version PMAGs brake down much differently than STANAG mag that I've seen. I'm very happy.
2: Look and Feel Great
3: Feed Well
4: Slim Design
5: Dust Cover
When I first loaded them, they were a little stiff, but that went away after about 20 times of loading them. Even though, it really wasn't that bad the mag would just seize up temporarily and a few rounds would shoot out of the speed loader. That could just be specific to the mags I personally got, but you should still get these!